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Finding the Fourth Proportional to 73,051.80, 109,383.30 and 46,613.40

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Solution

The fourth proportional to 73,051.80, 109,383.30 and 46,613.40 is: 69,796.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,051.80 : 109,383.30 = 46,613.40 : x
  2. Step 2: Convert to fraction form
    73,051.80/109,383.30 = 46,613.40/x
  3. Step 3: Cross multiply
    73,051.80x = 109,383.30 × 46,613.40
  4. Step 4: Simplify right side
    73,051.80x = 5,098,727,516.22
  5. Step 5: Solve for x
    x = 5,098,727,516.22/73,051.80
  6. Step 6: Final answer
    x = 69,796.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.